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Finding the Third Proportional to 149.94 and 164.47

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Solution

The third proportional to 149.94 and 164.47 is: 180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.94 : 164.47 = 164.47 : x
  2. Step 2: Convert to fraction form
    149.94/164.47 = 164.47/x
  3. Step 3: Cross multiply
    149.94x = 164.47 × 164.47
  4. Step 4: Simplify right side
    149.94x = 27,049.97
  5. Step 5: Solve for x
    x = 27,049.97/149.94
  6. Step 6: Final answer
    x = 180.41

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.